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See detailRisk-aware decision making and dynamic programming
Defourny, Boris ULg; Ernst, Damien ULg; Wehenkel, Louis ULg

Conference (2008)

This paper considers sequential decision making problems under uncertainty, the tradeoff between the expected return and the risk of high loss, and methods that use dynamic programming to find optimal ... [more ▼]

This paper considers sequential decision making problems under uncertainty, the tradeoff between the expected return and the risk of high loss, and methods that use dynamic programming to find optimal policies. It is argued that using Bellman's Principle determines how risk considerations on the return can be incorporated. The discussion centers around returns generated by Markov Decision Processes and conclusions concern a large class of methods in Reinforcement Learning. [less ▲]

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See detailThermo-hydro-mechanical simulation of Atlas in situ large-scale test in Boom clay
François, Bertrand ULg; Laloui, Lyesse

Conference (2008)

Detailed reference viewed: 11 (0 ULg)
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See detailL’usage de l’archive anonyme dans la photographie contemporaine
Bawin, Julie ULg

Conference (2008)

Detailed reference viewed: 3 (0 ULg)
See detailVolatile blends and oxylipins profiles in potato leaves (Solanum tuberosum L.) exposed to insects infestations and mechanical wounding.
Gosset, V.; Göbel, Cornelia; Harmel, N. et al

Conference (2008)

Detailed reference viewed: 16 (4 ULg)
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See detailATOMIC STRUCTURES OF HEAVY ELEMENTS : RECENT PROGRESS AND PERSPECTIVES
Biémont, Emile ULg; Fivet, V.; Palmeri, P. et al

Conference (2008)

In the present paper, we discuss some recent advances concerning the determination of new radiative parameters (transition probabilities, oscillator strengths, radiative lifetimes, branching fractions ... [more ▼]

In the present paper, we discuss some recent advances concerning the determination of new radiative parameters (transition probabilities, oscillator strengths, radiative lifetimes, branching fractions, Landé factors) in heavy ions. We also emphasize the difficulties that are frequently met in the field and that sometimes prevent obtaining accurate atomic data for the transitions of astrophysical interest. We concentrate particularly on the determination of radiative parameters for selected rare-earth (RE) ions (lanthanides and actinides) and for some atoms and ions of the sixth row of the periodic table. [less ▲]

Detailed reference viewed: 9 (2 ULg)
See detailRestoration assessment of calcareous grasslands in Belgium : soil conditions and floristic diversity
Piqueray, Julien ULg; Bottin, Gaëtan; Bisteau, Emmanuelle et al

Conference (2008)

Detailed reference viewed: 23 (4 ULg)
Peer Reviewed
See detailValidation of X-ray Micro-CT as Screening Tool for Bone Tissue Engineering Scaffolds
Kerckhofs, Greet ULg; Schrooten, Jan; Van Cleynenbreugel, Tim et al

Conference (2008)

Detailed reference viewed: 11 (3 ULg)
See detailAnalyse quantitative par spectroscopie proche infrarouge: Application au test d'unifomité de teneur des comprimés
Ginot, Y. M.; Bernard-Moulin, P.; Cinier, R. et al

Conference (2008)

La spectroscopie Proche infrarouge présente un large potentiel d'applications dans l'industrie pharmaceutique par sa capacité à transmettre des informations reliées à la fois à la structure chimique des ... [more ▼]

La spectroscopie Proche infrarouge présente un large potentiel d'applications dans l'industrie pharmaceutique par sa capacité à transmettre des informations reliées à la fois à la structure chimique des échantillons et à leur état physique. Elle peut être mise à profit pour des analyses qualitatives, telles l'identification des matières premières, et également pour des analyses quantitatives telles le dosage d'un principe actif dans un comprimé. Avec pour avantage une rapidité inégalée pour délivrer un résultat comparée aux techniques classiques en vigueur. Attrayante par ses performances, cette spectroscopie nécessite cependant une prise en main qui doit respecter une démarche minutieuse et souvent déroutante par son aspect heuristique (allers-retours) et à la mise en oeuvre d'outils d'analyse statistique multivariée. Si de nombreuses publications témoignent de la puissance de cet outil, il est apparu opportun de rassembler en un même texte la démarche de développement à suivre et les repères à connaître pour permettre son utilisation en analyse quantitative dans un contexte de libération pharmaceutique. Le travail de cette commission a été de rassembler les éléments issus de la pratique industrielle en se concentrant sur l'un des essais les plus intéressants: celui de l'uniformité de teneur des comprimés. Ce test est en effet l'une des applications où la rapidité de mise en oeuvre est le plus appréciable, tout en étant celui qui peut poser le plus de questions quant à la validité des résultats et la prise de décision pharmaceutique. [less ▲]

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See detailDevonian mio-and megaspores in Western Gondwana
Steemans, Philippe ULg; Breuer, Pierre; Miller, M.

Conference (2008)

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See detailImpact of Prosthesis-Patient Mismatch on Short-term Mortality Following Mitral Valve Replacement.
Magne, Julien ULg; Mathieu, P; Dumesnil, JG et al

Conference (2008)

Detailed reference viewed: 4 (0 ULg)
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See detailArchaeometry at the Centre Européen d’Archéométrie-Université de Liège
Calvo Del Castillo, Helena ULg; Mathis, François ULg; Garcia Moreno, Renata et al

Conference (2008)

Detailed reference viewed: 27 (3 ULg)
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See detailNon-native prosody: production and perception of accent
Rasier, Laurent ULg; Caspers, Johanneke; Van Heuven, Vincent

Conference (2008)

Detailed reference viewed: 4 (0 ULg)
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See detailStrained silicon on wafer level by wafer bonding: materials processing, strain measurements and strain relaxation
Reiche, M.; Moutanabbir, O.; Himcinschi, C. et al

Conference (2008)

Detailed reference viewed: 28 (1 ULg)
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See detailSpécificités et contraintes de la mesure des odeurs dans l'environnement par réseaux de capteurs
Nicolas, Jacques ULg

Conference (2008)

L'estimation de la nuisance olfactive dans l'environnement est une tâche rendue particulièrement difficile par la multiplicité des sources, leur grande variabilité, leur caractère parfois très diffus et ... [more ▼]

L'estimation de la nuisance olfactive dans l'environnement est une tâche rendue particulièrement difficile par la multiplicité des sources, leur grande variabilité, leur caractère parfois très diffus et fugitif et surtout par la subjectivité de l'appréciation de la gêne. Aussi faut-il mettre en œuvre plusieurs méthodes complémentaires qui vont de l'analyse chimique (GCMS) aux enquêtes de riverains, en passant par l'olfactométrie dynamique impliquant un panel de personnes reniflant différentes dilutions d'un échantillon prélevé sur le terrain. Or, aucune de ces méthodes ne permet un suivi continu des odeurs qui viserait, par exemple, à détecter l'émergence d'une émission particulière dans une ambiance. A ce niveau, la technologie des nez électroniques semble très prometteuse et particulièrement attractive. Basée sur la réponse globale d'un réseau de capteurs non spécifiques, elle permet non seulement d'identifier qualitativement une source particulière, mais également de la suivre en continu. L'unité "Surveillance de l'Environnement" de l'ULg applique cette technique pour suivre les odeurs en périphérie de sites émetteurs et notamment un centre de compostage. Les appareils développés sont basés sur des capteurs commerciaux à oxydes métalliques. La méthode exige une calibration préalable afin de créer et de valider le modèle de reconnaissance et la loi qui relie les signaux des capteurs à une variable quantitative comme la concentration d'odeur. Bien que testée avec succès autour d'installations en vraie grandeur, la technique des "nez électroniques" reste soumise à de nombreuses limitations et contraintes. Parmi ces contraintes, il faut citer la dérive des capteurs, l'influence de l'humidité et de la température, la difficulté de trouver un gaz étalon représentatif des odeurs environnementales ou encore celle de calculer un indicateur global qui serait l'image "électronique" de la nuisance olfactive. En général, la méthode du nez électronique peut être envisagée pour le suivi d'odeurs ponctuelles à la source, par exemple dans un hall de compostage ou dans un bâtiment d'élevage, pour autant que l'ambiance ne soit pas trop agressive. L'unité de recherche teste actuellement le principe de réseaux de nez électroniques placés tout autour d'un site. En ajoutant l'information en provenance d'une station météorologique, un tel système permet la prédiction en temps réel de zones de nuisance olfactive dans l'environnement. Cependant, dès que l'on s'éloigne de l'émission et que l'on s'intéresse à la mesure de l'ambiance olfactive à proximité des habitations des riverains, la technique des nez électroniques présente une limitation sévère due au seuil de détection des capteurs. En effet, le nez humain est parfois sensible à de très faibles concentrations de composés volatils qui ne sont pas détectées par les capteurs. Il devient alors indispensable de piéger ces composés dans des dispositifs de pré-concentration en ligne. De tels dispositifs, actuellement en développement, autoriseraient un élargissement du champ d'application des nez électroniques, notamment vers le domaine très vaste de l'environnement intérieur. [less ▲]

Detailed reference viewed: 70 (5 ULg)
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See detailConstruction et droit de la consommation: propos introdutifs
Kohl, Benoît ULg

Conference (2008)

Detailed reference viewed: 4 (0 ULg)
Peer Reviewed
See detail3-D gas exchange pathways in pome fruit characterised by synchrotron X-ray computed tomography
Verboven, Pieter; Kerckhofs, Greet ULg; Mebatsion, Hibru K. et al

Conference (2008)

Detailed reference viewed: 6 (1 ULg)
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See detailOn the complementarity of contrastive linguistics and interlanguage studies
Rasier, Laurent ULg; Hiligsmann, Philippe

Conference (2008)

Detailed reference viewed: 16 (1 ULg)
See detailOperational monitoring of multi-qubit entanglement classes via tuning of local operations
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

Conference (2008)

Detailed reference viewed: 4 (0 ULg)
See detailLes insctruments de la fiscalité environnementale
Bourgeois, Marc ULg

Conference (2008)

Detailed reference viewed: 8 (0 ULg)
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See detailScaffolds for bone tissue engineering: design, production and evaluation
Schrooten, Jan; Impens, Saartje; Chen, Y. et al

Conference (2008)

Detailed reference viewed: 8 (0 ULg)
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See detailHeat pumping and reversible air conditioning : how to make the best use of HVAC equipment ?
Bertagnolio, Stéphane ULg; Lebrun, Jean ULg; Andre, Philippe ULg et al

Conference (2008)

Substituting a heat pump to a boiler may save more than 50% of primary energy, if electricity is produced by a modern combined cycle power plant (and even more if a part of that electricity is produced ... [more ▼]

Substituting a heat pump to a boiler may save more than 50% of primary energy, if electricity is produced by a modern combined cycle power plant (and even more if a part of that electricity is produced using renewable sources). Two of the most attractive heat pumps applications consist in recovering the heat rejected by the condenser of an existing chiller and in using this chiller in reversible mode. This is the topic of the IEA-ECBCS Annex 48 project (“Heat pumping and reversible air conditioning”). An overview of the project is presented and the work of the different participants is briefly explained. Case studies are also briefly presented and more details are given on one of them. [less ▲]

Detailed reference viewed: 48 (2 ULg)
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See detailAssessment of stress level in horses (Equus caballus): behavioural and physiological measurements in hospital.
Peeters, Marie ULg; Péters, F.; Sulon, J. et al

Conference (2008)

Detailed reference viewed: 40 (7 ULg)
See detailLate Devonian plants from Australia: the anatomically preserved flora from Barraba, New South Wales.
Meyer-Berthaud, Brigitte; Blanchard, Romain; Decombeix, Anne-Laure et al

Conference (2008)

Detailed reference viewed: 14 (0 ULg)
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See detailRange-dependence compensation in airborne bistatic STAP radar for partially-calibrated conformal antenna arrays
Ries, Philippe; Lapierre, Fabian D.; Lesturgie, Marc et al

Conference (2008)

Detailed reference viewed: 8 (0 ULg)
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See detailHolocene Records of Aerosols in Continental Environments (HoRACE)
Le Roux; De Vleeschouwer, F.; Cherbukin et al

Conference (2008)

Detailed reference viewed: 6 (1 ULg)
See detailGeneration of arbitrary Dicke states in remote qubits using linear optics
Maser, A.; Thiel, C.; Schilling, U. et al

Conference (2008)

Peer Reviewed
See detailTransfer in interlanguage phonology: the case of prosody
Rasier, Laurent ULg

Conference (2008)

Detailed reference viewed: 31 (0 ULg)
See detailTotal Electron Content monitoring using triple frequency GNSS data: a three-step approach
Spits, Sandrine; Warnant, René ULg

Conference (2008)

Detailed reference viewed: 14 (2 ULg)
See detailLe droit scolaire
Maréchal, Benoît ULg

Conference (2008)

Seminar on the rights and duties at school and the admninistrative proceedings in case of litigation.

Detailed reference viewed: 101 (0 ULg)
See detailEvidence for a mitochondrial synthesis of thiamine triphosphate in the rat brain
Gangolf, M; Wins, P; Thiry, Marc ULg et al

Conference (2008)

Detailed reference viewed: 6 (0 ULg)
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See detailPoultry products market : Food safety and international trade
Duquesne, Brigitte ULg

Conference (2008)

Detailed reference viewed: 9 (2 ULg)
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See detailWATER QUALITY AND POLLUTION CONTROL IN PHNOM PENH, CAMBODIA
men, nareth; Ly, Sarann ULg; ann, vannak et al

Conference (2008)

The urban infrastructure, particularly water supply and drainage systems, have deteriorated severely in the past two decades in Phnom Penh, the capital city and the economic center of Cambodia. Water ... [more ▼]

The urban infrastructure, particularly water supply and drainage systems, have deteriorated severely in the past two decades in Phnom Penh, the capital city and the economic center of Cambodia. Water pollution caused by untreated wastewater is one of the serious problems that confront most developing countries (Kwai et al.1991). In Phnom Penh City, all kinds of wastewater are discharged to rivers, lakes and wetlands throughout the city without proper treatment causing serious surface water pollution. Water testing is an essential factor to control water pollution. However, water quality data and water quality testing systems are still poorly developed in Cambodia due to lack of facilities and technical expertise. Therefore, there is no information available on sewage water quality in Phnom Penh City. That’s why the work is aimed at collating basic information about the situation of water supply, waste water system and solid waste. The present information will provide the basis for targeting further field research. This is included the overview of sources and activities that may lead to pollution, with an appreciation of type of water pollutants involved, their magnitude and movement. Types of waste and effluent disposal including sanitation, liquid and solid waste management systems are described. After reviewing all the available, we found that the distribution of water has been well organized by the Phnom Penh Water Supply Authority while the managements of the wastewater, storm water and solid waste are poor due to the rapid urbanisation and industrialisation. [less ▲]

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See detailHistoires parallèles de la sculpture moderne
Bawin, Julie ULg

Conference (2008)

Detailed reference viewed: 2 (0 ULg)
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See detailProsody in second language acquisition: production and perception
Rasier, Laurent ULg

Conference (2008)

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See detailA distinctive marginal marine palynological assemblage from the Pridoli of Northwestern Saudi Arabia
Al-Hajri, S.; Verniers, J.; Paris, F. et al

Conference (2008)

This paper describes a rare occurrence of a rich and diverse palynological assemblage from a controversial stratigraphic unit in well EW8 in northwestern Saudi Arabia. The composition of this assemblage ... [more ▼]

This paper describes a rare occurrence of a rich and diverse palynological assemblage from a controversial stratigraphic unit in well EW8 in northwestern Saudi Arabia. The composition of this assemblage strongly suggests a Pridoli age and therefore it is referred here to the Tawil Formation. The assemblage encountered contains very characteristic chitinozoans, acritarchs, tasmanities, scolecodontsm, eurypterid cuticle and common land-derived miospores and hilate cryptospores. Chitinozoans such as Margachitina elegans, Ancyrochitina fragilis brevis, Ancyrochitina fragilis, Sphaerochitina sphaerocephala, Urnochitina urna, Pseudochlathrochitina carmenchui and Lagenochitina brevicollis confer the Pridoli age assignment. This assemblage of chitinozoans correlates very well with Assemblage D from the Alternances Gréso-Argileuses Formation of the A1-61 well in northwestern Libya. Among the acritarchs present are: Cymbosphaeridium pilar, Leoniella carminae,Diexallophasis spp., Tunisphaeridium cf caudatum, Leiofusa estrecha and Eupoikilofusa striatifera. <br /> <br />Furthermore, the join occurrence of U. urna, P. carmenchui and M. elegans is clearly indicative of the middle part of the Pridoli as in the Libyan well A1-61, and in many wells in Algeria. This corresponds to what is considered to be a transgressive mid Pridoli event in the Algerian Sahara, with non marine intervals bracketing this brief marine sea level rise. This event is likely to have extended into all of north Gondwana including Arabia. [less ▲]

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See detailLa consécration de la Charte des droits fondamentaux
Defossez, Alexandre ULg

Conference (2008)

Detailed reference viewed: 42 (5 ULg)
See detailHypoxia promotes resistance to etoposide by regulating p53 stability and c-jun DNA-binding activity
Cosse, Jean-Philippe ULg; Ronvaux, Marie; Ninane, Noelle et al

Conference (2008)

Detailed reference viewed: 5 (0 ULg)
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See detailWelcome & Introduction to Liège Image Days 2008: Medical Imaging
Verly, Jacques ULg

Conference (2008)

Detailed reference viewed: 11 (0 ULg)
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See detailThe IMA-CNMNC dominant-constituent rule revisited and extended
Hatert, Frédéric ULg; Burke, Ernst

Conference (2008)

Detailed reference viewed: 2 (0 ULg)
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See detailPrix de l’alimentation : une hausse sans faim
Duquesne, Brigitte ULg

Conference (2008)

Detailed reference viewed: 24 (5 ULg)
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See detailLarge scale network and restoration of peatbogs and wetlands in Southern Belgium
Dufrêne, Marc ULg; Dierstein, Axelle; Frankard, Philippe et al

Conference (2008)

Detailed reference viewed: 20 (2 ULg)
See detailForesterie communautaire : les silences de la loi gabonaise
Vermeulen, Cédric ULg

Conference (2008)

Detailed reference viewed: 12 (2 ULg)
See detailQuantum imaging with trapped ions
von Zanthier, J.; Thiel, C.; Bastin, Thierry ULg et al

Conference (2008)

Detailed reference viewed: 3 (0 ULg)
See detailQuantum imaging with single photon sources
Thiel, C.; Bastin, Thierry ULg; von Zanthier, J. et al

Conference (2008)

Detailed reference viewed: 2 (0 ULg)
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See detailLa mondialisation multiple des musiques populaires
Pirenne, Christophe ULg

Conference (2008)

Detailed reference viewed: 22 (1 ULg)
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See detailVision as Inference in a Hierarchical Markov Network
Piater, Justus ULg; Scalzo, Fabien; Detry, Renaud ULg

Conference (2008)

Detailed reference viewed: 15 (1 ULg)
See detailUsing monovariate and multivariate EOFs to reconstruct missing data with DINEOF
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Sirjacobs, Damien ULg et al

Conference (2008)

DINEOF (Data Interpolating Empirical Orthogonal Functions) is an EOF-based method to reconstruct missing data in geophysical data sets. DINEOF can be used to reconstruct monovariate data sets (as sea ... [more ▼]

DINEOF (Data Interpolating Empirical Orthogonal Functions) is an EOF-based method to reconstruct missing data in geophysical data sets. DINEOF can be used to reconstruct monovariate data sets (as sea surface temperature (SST), chlorophyll, etc), and multivariate data sets with little increase in complexity. For multivariate reconstructions, extended EOFs are used, which take into account the interrelationships between related variables to infer data at missing locations. Spatial maps of the standard deviation of the reconstruction error can be also calculated. In the past, DINEOF has been compared to Optimal Interpolation (OI) techniques for the Adriatic Sea SST. The results showed that DINEOF was faster than OI, making it very suitable for operational applications. DINEOF was also more accurate when compared to in situ data. Another advantage of DINEOF is that there is no need for a priori knowledge of the statistics of the reconstructed data set (such as covariance or correlation length), thus reducing the subjectivity of the analysis. DINEOF has been successfully used to reconstruct a large variety of domains over the world ocean, mostly at the regional scale. In addition to an overview of the technique's capabilities, limitations and future developments, recent work aimed to improve the quality of the reconstructions at the global and local scales will be presented. [less ▲]

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See detailDéveloppement rural et coopération interuniversitaire
Dang Vu, Binh; Vu Dinh, Ton; Lebailly, Philippe ULg et al

Conference (2008)

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See detailVapor phase doping: an atomic layer deposition approach to n-type doping in classical chemical vapor deposition epitaxy
Takeuchi, Shotaro; Nguyen, Ngoc Duy ULg; Leys, Frederik et al

Conference (2008)

Detailed reference viewed: 12 (1 ULg)
See detailDetection of small-scale structures in the neutral atmosphere using double differences of GNSS measurements
Brenot, Hugues; Lejeune, Sandrine; Warnant, René ULg

Conference (2008)

Detailed reference viewed: 13 (0 ULg)
See detailIonospheric Products and Services from the Regional Warning Centers of the International Space Environment Service (ISES) for GNSS Users
Kunches, J.; Terkildsen, M.; Stanislawska, I. et al

Conference (2008)

Detailed reference viewed: 13 (0 ULg)
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See detailFruit microstructure evaluation using synchrotron X-ray computed tomography
Verboven, Pieter; Kerckhofs, Greet ULg; Mebatsion, Hibru K. et al

Conference (2008)

Detailed reference viewed: 7 (2 ULg)